Mine car



May, i934. lEHGmBS 1,956,792'

MINE CAR Filed Dec. 5, 1952 INVENTOR- Patented ay l, 1934 STA PATE OFFICE CAR Application December 3, 1932, Serial No. $451,545

il Claim.

This invention relates to mine cars and has for one object the provision of a mine car body the capacity oi' which is increased over that of the usual body without increasing the overall dimen- 5 sions. v

it is well understood that the clearance spac within which a mine car must travel in a mine is limited. it is highly desirable, in spite of the limited clearance within a mine, to provide a Il@ mine car having a body. with as great a lading capacity as is possible. In end dump mine cars vit is common practice to arrange the bail for the end gate on the outside of the car body. This bail may consist of connected bars or a single l5 plate but in the usual type of mine car body the fact that the bail is arranged on the outside or outer surface oi the body means that the interior ci the car body is correspondingly reduced in width in order that the mine car may not exceed E@ the clearances provided within a mine. in addition to-the bail it is common practice in mine car construction to provide reinforcing elements in the form of belts arranged outside the body and extending across the car bottom and upwardly along the side walls of the car. it is apparent that these belts, in addition to the bail, project beyond the side walls of t e ear body and this necessitates a reduction in the width of the car body.

iid Another object of thisinvention is to provide a mine car body which is reinforced and stiffened by belts or by ties which extend from side wall to side wall and connect the side sills but in which car body the belts do not project or extend be- 8d yond the normal vertical plane dened by the side walls of the car whereby it is possible to provide a car body of increased lading capacity without a corresponding increase in the over-all dimensions of said body.

d@ Still another object of this invention is the provision of a mine car body having reinforcing elements for the side walls thereof which are inset with relation to the side walls whereby the width of the car body is increased.

dd A further object of this invention is the provision of an end dump mine car having an end gate with an outside bail arranged closely adjacent the side walls of the body.

A still further object of the present invention 50 is the provision of a mine car body having its side walls stiffened by means of inset portions so' formed that substantially no interference to free dumping of the lading results.

Other objects and advantages of this invention dd willbe apparent from the following description (El. H05-364) taken in conjunction with the accompanying drawing in which:

Figure 1 is a side elevation of a mine car showing the body of the present invention.

Fig. 2 is a sectional view on the line 2 2, 60 Fig. 1.

Fig. 3 is a sectional view on the line 3 3, Fig. 1.

Fig. 4 is a sectional view on the line 4 4, Fig. 2, and

Fig. 5 is an end elevation of the Vcar body. o5

Referring now more particularly to the drawing in which similar characters of reference designate similar parts in the several views, the car of the present invention comprises a body indicated generally at A, supported by wheels B, 7o carrying stub axles C. While the car shown is of the stub axle type it is not to be understood kthat the invention is limited thereto as the car may have axles which are arranged either above or ybelow the plane of the car floor or bottom and i5 which carry wheels at the opposite end portions thereof. All oi this will be apparent :from the description to follow.

The car body A is substantially rectangular in plan and comprises a central door portion 2 the 80 side edge portions of which are upwardly and then outwardly anged as at 4 and d respectively to iorm side sills integral with said central iioor portion. ii desired it is apparent that the side sills may be formed as independent elements to a5 which the central floor portion 2 may be secured. Extending outwardly from the upper sill anges 6 are side :door portions 8 which, in the instance shown, are formed integral with the side walls 10. 'I'he upper edge portions of vthe side walls 9o are stiffened by a bead 12. Obviously within the spirit of the present invention, the side walls 10 may be independently formed and attached or secured to the side oor portions 8 in any suitable or desired manner. One end of the p5 body is provided with a xed end wall 14, stiilened by a. bead 15 while the opposite end is closed by a gate 16. The car of the present invention is provided with bumper constructions 18.

As before mentioned, it is desirable to provide .100 a mine car with a body having as large a lading capacity as is possible within the clearance limits aiorded in a mine. To effect this the body is made as wide as possible and the side walls thereof are provided with a plurality of vertically ar- .105 ranged recesses 20 formed by insetting the side walls 10.for a portion of their height as shown at 22. The recesses 20 extend upwardly from the side floor portions and terminate below the bead 12. As clearly shown in Figs. 3 and 4 the re- 110 cesses terminate a substantial distance below the beads 12 and, as shown clearly in Fig. 2, they are of a depth sumcient to receive the vertical portions of belts 24 in such a manner that the latter do not project or extend beyond the vertical plane of the outer surfaces of the side walls 10. The inset portions are formed with unequal sides 26 and 27 which are relatively so arranged that they do not interfere with the discharge of the lading from the car, in fact, the arrangement of said sides facilitates discharge of the lading;

side 26 sloping gradually inwardly relative to the car body and toward the gate end while the side 27 of each inset portion has an abrupt slope, all as clearly shown in Fig. 2.

The belts 24 are secured in any suitable manner as by rivets 28 within the recesses 20 and extend under the side floor portions and against the side sills S and'then downwardly under the central floor portion 2. The be1ts may be and preferably are secured to the floor portions 2 and 8 in any suitable manner as by rivets 30.

'I'he gate 16 is provided with a bail 32 formed in the instance shown of a pair of connected bars, though obviously this bail may be a single plate if desired. The bail 32 is pivotally connected by means of a pin 34 to-one of the belts 24 so that the body may be tilted an'd the gate supported to open the end of the body for dumping purposes. It is apparent that due to the insetting ot the belts 24 the bail 32 is brought closely adjacent the side wall 10 (see Fig. 2) and therefore, in case of undue stress at the dumping end of the car against the side walls 10, serves as a means for preventing bulging of the side walls. For stiii'ening purposes the end gate 16 is provided with suitable rigidifying corrugations or embossments 36.

The side fioor portions are provided with wheel receiving openings which are covered by wheel housings 38 which, in the instance shown, are pressings adapted'to be applied to the car by insertion thrugh the opening from below; the housings 38 including attaching portions 40 and having bearing portions 42 which support the stub axles C. The outer bearing portion 42 is reinforced by a bracing member indicated in Fig. 2 at 44. I

From the description given above it is obvious that due to tpeinset of the side walls ofthe cai` body A the belts 24 do not project beyond the vertical plane of the side walls 10. This provides a construction in which the width of the car maybewitharesultingincreasein vthe recesses 20.

lading capacity. The construction also provides an arrangement in which the bail 32 lies closely adjacent the side walls 10 of the car and this bail may be made of relatively thin gauge material commensurate with service conditions. The width of the body is increased to an appreciable extent and the full lading capacity of said body is thus maintained. In a typical example, a body which is approximately ten feet long and which has side walls approximately two feet high, the width of said body is increased, with a resulting increase in capacity of approximately two cubic feet and this is eiected by no increase in the overall dimensions of the car.

As will be observed in Fig. 2 the end belt providing vertical post portions 24 next the end gate 16 is positioned wholly within the normal outer planeof the side wall at that end of the vcar body and the sloping surface 26 inclines inwardly of the body towards the end gate at an angle of about thirty degrees from the normal plane of the side wall, thereby forming, with the end gate, a housing for the end belt 24 provided with such gradually sloping surfacewithin the car body as to provide little or no obstruction to the flow, by gravity, of the coal to be dumped from said body. A somewhat similar condition exists at each belt 24 at which the face 26 farther from the4 end gate is more gradually inclined than is the more abrupt slope at the opposite side of The drawing herein illustrates one embodiment of the invention but it is to be understood that it is for illustrative purposes only and various changes in the form and proportions of the construction may be made within the scope of the appended claim without departing from the spirit of the invention.

What is claimed is:

In an end dump mine car, a body comprising side walls and an end gate, said side walls having portions thereof inset to provide external vertical recesses and internal wall stiffeners, said stiffeners each having a part thereof which slopes gradually inward relative to the body in a direction toward the end gate whereby to facilitate discharge of lading from the body, belts extending under. the car body and into said recesses, and a bail for the end gate pivoted to one of said belts and arranged closely adjacent portions of the 'outer surfaces of said side walls whereby to serve as reinforcements therefor.

" FREDERICK H. amas. 

